【摘要】 本文用有限差分法得到了圆柱介质谐振器及环形谐振器放置在微带基片上或空气中的TE_onl模式的差分方程;计算了这种结构中低次模的谐振频率,及该频率随谐振器系统参量变化的调谐特性。借助计算机绘出了场分布图及等场强图,实验结果与理论计算的偏差小于1％。更多还原

【Abstract】 The finite-difference method is used in the study of the electrical behaviors of ring and cylindrical dielectric resonators, which are placed on dielectric substracts and shielded by metallic cases. The resonant frequency is calculated as a function of the system parameters, and the curves of the field strength variation and the contours of individual field components are ploted. The numerical results are verified by experiments, showing a deviation of less than one percent.更多还原